Fourths to thomas r



(No Model.) 2 Sheets-Sheet 1. W. H. MORGAN.

CLUTCH OPERATING DEVICE.

x l l l l l I i l s l l l A2 Sheets-Sheet 2.

(No Model.)

W. E. MORGAN.

CLUTCH OPERATING DEVICE.

Patented Aug. 27,1895

Uivrrnn Sterns FITCE@ IVILLIAM HENRY MORGAN, OF ALLIANCE, OHIO, ASSIGNOROF THREE- FOURTI-IS TO THOMAS R. MORGAN, SR., THOMAS R. MORGAN, JR., ANDJOHN R. MORGAN, OF SAME PLACE.

CLUTCH-OPERATING DEVICE.

SPECIFICATION forming part of Letters Patent N o. 545,369, dated August27, 1895.

Application filed December 6, 1894- Serial No. 531,043. (No model.)

To @ZZ whom, it may concern:

Be it known that I,-W1LLIAM HENRY Mon- GAN, a resident of Alliance, inthe county of Stark and State ot' Ohio, have invented certain new anduseful Improvements in Clutch- Operating Devices; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to au improvement in clutches, and moreparticularly to means for operating such clutches as are employed inconnection with traveling cranes. The overhead traveling cranes nowcommonly employed for lifting and carrying heavy Weights consist of atraveling bridge mounted at its ends on a suitable trackway and adaptedto travel lengthwise the shop and a trolley mounted on the bridge andadapted to travel lengthwise of said bridge, the trolley carrying thehoisting drums and chains. Some of these cranes are actuated by endlessropes, some by angular shafts, and others by steam-engines and electricmotors carried by the bridge. In most cases, so far as I am aware, theclutches on the movable trolley are actuated by mechanical devicesmounted on the bridge, the most familiar form ot' clutch-operatingdevice being an angular shaft adapted to be rocked by a lever passingthrough a sleeve carried by the trolley, the said sleeve being connecteddirectly or indirectly to the clutch-operating yoke.

IVhile my present invention is designed more particularly forelectrically-operated cranes, it is evident that the clutch devices tobe hereinafter described can be used in connection with machinery of anykind.

The object of my present invention is to produce simple and eiiicientmeans whereby the speed of the driven shaft can be changed by theoperation of an electrical switch. f

A further object is to so construct and arrange electricalclutch-operating d-evices that a portion of an electric motor can beutilized in the operation thereof.

With these objects in view the invention consists in the combination,with an electric machine, a driven shaft, and a clutch on the drivenshaft, of devices between said electric machine and clutch for operatingthe latter and an electric circuit, including a switch, for controllingthe operation of said devices.

The invention also consists iu the combination, with the field-magnetsot' an electric machine, a driven shaft, and a clutch on said shaft, ofa pivoted armature to be acted upon by said field-magnets andconnections between said arinature and clutch. I

`The invention also consists in the combination,with the field-magnetsof an` electric inachine and a clutch, of an electromagnetic armature tobe acted upon by said field-mag nets, connections between said armatureand the clutch, and an electric circuit, including the helix of saidelectromagnetic armature and a switch, whereby. the polarity of saidarmature can be rendered the same as the polarity of the adjacenttield-magnet; and the invention also consists in certain novel featuresof construction and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure l is a plan view illustrating myinvention. Fig. 2 is an end view.

A represents a suitable framework in which an electric motor B ismounted, said frame being also constructed and adapted to receive apower-shaft C, from which motion maybe conveyed in anysuitable orpreferred manner. The shaft d of the armature a of the motor is providedwith a small pinion l, which meshes with and transmits motion to a largegear-wheel 2, carried by a counter-shaft 3, which latter is mounted inthe frame A. At the other end of the counter-shaft a pinion 4 and agear-wheel 5 are fixed. meshes with and transmits motion to a largegear-wheel 6, mounted loosely on the power- The pinion 4l i shaft C, andthe gear-wheel 5 meshes with and transmits motion to a gear-wheel 7,(preferably smaller than the gear-wheel 5,) mounted loosely on saidpower-shaft. Between these gear-wheels a clutch D is located for lockingone or the other gear-wheel 6 or 7 to the power-shaft. To the collar h,connected with the clutch, levers d d are pivotally connected, saidlevers being pivoted near their opposite ICO ends to a bracket e,secured to the framework A. In close proximity to the electric motor anelectromagnetic armature E is located and made with two pole-pieces ff,said pole-pieces being pivotally connected at points between their endsto arms or brackets g projecting from the framework and adapted at theirfree ends to lie in close proximity to the fieldmagnets h of the motor,so as to be affected by the magnetism thereof in the manner hereinafterto be explained.

The electromagnetic armature E is connected with the short arms of thelevers d by means of connecting-rods t', and the helix 7c of saidelectromagnetic armature is included in an electric circuit with asuitable switch, (not shown,) by means of which latter said armature canbe energized or de-energized at will. The armature E is made of softiron, so that when no current is passing through the coil or helix losaid armature will not possess the properties of a magnet, and bothpole-pieces of said armature will therefore be attracted by thefield-magnets of the motor. iVhen the armature E is thus attracted bylthe fieldmagnets of the motor, said armature will be turned on itsfulcrum, which motion will be transmitted through the pitmen t' to thelevers cl and the clutch D made to move on the shaft C, so as to lockthe gear-wheel 6 to said shaft. As the large gear-wheel 6 receives itsmotion from the small pinion on the counter-shaft, a slow motion will beimparted to the power or driven shaft.

The electromagnetic armature is so wound and disposed that when itisenergized its poles will be adjacent to like poles of thefield-magnets of the motor. Vhen the circuit through the helix of thearmature is closed, the armature will be energized, and, as its polesare adjacent to like poles of the fieldmagnets, said armature will berepulsed, thus causing it to turn on its fulcrum in the reversedirection to that above described, thereby causing a reverse movement ofthe levers d and the clutch, which acts to free the gearwheel 6 on theshaft C and lock the gear-wheel 7 to said shaft. As the gear-wheel 7receives its motion from a larger gear-wheel on the counter-shaft, afast motion will be imparted t0 the power-shaft.

From the construction and arrangementof parts above described it will beseen that in order to impart a fast or a slow motion to the driven orpower shaft C it is simply necessary to manipulate the switch which isincluded in the circuit of the helix of the armature. Vthen said switchis open, a slow motion will be imparted to the driven shaft, and whenthe switch is closed a fast motion will be imparted to said drivenshaft.

My improvements are very simple in construction,effectual in theperformance of their functions, and can be easily manipulated by meansof any suitable electrical switch located at any convenient point.

Various slight changes might be made in the details of construction ofmy invention without departing from the spirit thereof or limiting itsscope, and hence I do not wish to limit myself to the precise details ofconstruction herein set forth; but.,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with an electric motor, a driven shaft, and gearingbetween the armature shaft and the driven shaft, of a clutch on thedriven shaft, an armature to be acted upon by the field magnet of themotor, and

connections between said clutch and armature, substantially as setforth.

2. The combination with an electric motor and a shaft adapted to bedriven by said motor, of an electro-magnetic armature adapted to beattracted and repelled alternately by the field magnet of the motor, aclutch on said shaft and a connection between said armature j and theclutch, substantially as set forth.

3. The combination with an electric motor, a driven shaft, a clutch onthe driven shaft and gearing between said driven shaft and motor, of apivoted electro-magnetic armature adjacent to the field magnets and of alike polarity when energized to the field magnets, a pivotal leverconnected with said clutch and a rod connecting the electro-magneticarmature with the pivoted lever, substantially as set forth.

4. The combination with an electric motor and a driven shaft, of acounter shaft adapted to receive motion from the shaft of the motor, asmall and a large gear fixed to said counter shaft, a large and asmaller gear wheel loosely mounted on the driven shaft, said large gearr meshing with the small gear on the countershaft and the smaller gearon the driven shaft meshing with the larger gear on thecountershaft,aclutch between the loose gears on the driven shaft wherebyto lock one or the other of said gears to the shaft, pivoted levers connected with said clutch, a pivoted electromagnetic armature adapted tobe acted upon by the eld magnets of the motor, and rods connecting saidelectro-magnetic armature with said pivoted levers, substantially as setforth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses. v

WILLIAM HENRY MORGAN.

Witnesses:

W; C. LLOYD, E. WooLGAR.

